如何在使用過濾器進行搜索後刷新數據網格

Question

我嘗試了一些代碼，但沒有任何結果。

Me.DataGridView1.Refresh() 

爲什麼？ 我的datagridview自動連接到數據庫，而不是手動使用命令進行連接。

Answer 1

嘗試下面的代碼...我想你除了像下面的代碼....

//Text box Change Event 

     private void textBox1_TextChanged(object sender, EventArgs e) 
     { 
      if (textBox1.Text != "") 
       GetData("select * from Sample where num =" + textBox1.Text); 
      else 
       GetData("select * from Sample"); 
     } 

//Data Bind Event by using BindingSource 

     private void GetData(string selectCommand) 
    { 
     try 
     { 
      String connectionString ="Your Connection String"; 
      OleDbDataAdapter dataAdapter = new OleDbDataAdapter(selectCommand, connectionString); 
      OleDbCommandBuilder commandBuilder = new OleDbCommandBuilder(dataAdapter); 
      DataTable table = new DataTable(); 
      table.Locale = System.Globalization.CultureInfo.InvariantCulture; 
      dataAdapter.Fill(table); 
      //BindingSource - Binding 
      sampleBindingSource.DataSource= table; 
      dataGridView1.AutoResizeColumns( 
       DataGridViewAutoSizeColumnsMode.AllCells); 
     } 
     catch (SqlException) 
     { 
      MessageBox.Show("Error Occured"); 
     } 
    }